Spraying is scheduled between 9 p.m. and 5 a.m. from Wednesday, June 17, to Thursday, June 18.
🦟 West Nile Virus Alert – Weather permitting, the following half-mile blocks are scheduled for mosquito control spraying 9 p.m. – 5 a.m. on Wed, June 17 and Thu, June 18.
7100 JOYCE WAY, 75225
4500 COLLEGE PARK, 75229
2700 LAWRENCE ST, 75215More info: https://t.co/5d73WX8AK1 pic.twitter.com/oEbZD2WGMI
— City of Dallas (@CityOfDallas) June 17, 2026
Residents in the affected zones are advised to stay indoors during operations, keep windows closed, and avoid direct contact with the spray. The insecticide is EPA-approved and breaks down quickly in sunlight.
Control Area 1: The area to be sprayed is within an area generally bounded by 7100 block of Joyce Way (75225) in Council District 11: Stonetrail Drive on the north, Thackery Street on the west, Glen Albens Circle on the east, and Park Lane on the south.
Control Area 2: The area to be sprayed is within an area generally bounded by 4500 College Park (75229) in Council District 13: Mendenhall Drive on the north, Forum Lane on the west, Strait Lane on the east, and Irvin Simmons Drive on the south.
Control Area 3: The area to be sprayed is within an area generally bounded by 2700 Lawrence Street (75215) in Council District 7: Roberts Avenue on the north, Eugene Street on the west, Vannerson Drive on the east, and CF Hawn Freeway.
Similar targeted ground spraying is occurring this week in surrounding North Texas communities, including Arlington (June 16-17) and Flower Mound (June 17-18), following positive mosquito detections.
2025 Case Numbers in Texas and the Dallas Area
In 2025, Texas reported 127 human cases of West Nile Virus and nine deaths, according to state and federal data.
Dallas County Health and Human Services (DCHHS) recorded eight human cases and at least one death during the 2025 season, along with 245 positive mosquito traps.
As of mid-June 2026, Texas has reported one human case statewide (in Harris County), with no human cases yet confirmed in Dallas County. Multiple mosquito pools have tested positive in the Dallas-Fort Worth area.
Symptoms and Potential Lasting Effects
Most people (about 80%) infected with West Nile Virus show no symptoms, per the CDC. Approximately 20% develop mild West Nile fever, with symptoms including fever, headache, body aches, joint pain, vomiting, diarrhea, or rash. These typically resolve within a few days to a few weeks, though fatigue and weakness can persist for weeks or months.
About 1 in 150 infected individuals develop severe neuroinvasive disease, which can affect the brain and spinal cord. Symptoms may include high fever, neck stiffness, disorientation, stupor, tremors, convulsions, muscle weakness, vision loss, numbness, or paralysis. Recovery from severe cases can take weeks or months, and some neurological effects may be permanent. About 10% of severe cases are fatal.
The virus is primarily transmitted by the bites of infected mosquitoes, particularly the southern house mosquito, which is active in Dallas County. Rare transmission has occurred through blood transfusions, organ transplants, or from mother to child.
Prevention Tips
Dallas County and city officials recommend the following measures:
- Eliminate standing water around homes, as mosquitoes can breed in as little as 7 days in items such as birdbaths, tires, flower pots, clogged gutters, and pet dishes.
- Use EPA-registered insect repellents containing DEET, picaridin, or oil of lemon eucalyptus when outdoors, especially at dusk and dawn.
- Wear long sleeves and pants during peak mosquito activity times.
- Install or repair window screens.
- Support community spraying efforts while following safety guidance.
Free mosquito dunks are available at Dallas Code Compliance district offices while supplies last. Residents can report standing water or request to be added to the “Do Not Spray” list by calling 311.
Health officials continue monitoring across North Texas. Updates on spraying schedules and positive detections are available through city and county channels.
